July 7, 2019  |  

Legionnaires’ disease outbreakcaused by endemic strain of Legionella pneumophila, New York, New York, USA, 2015.

Authors: Lapierre, Pascal and Nazarian, Elizabeth and Zhu, Yan and Wroblewski, Danielle and Saylors, Amy and Passaretti, Teresa and Hughes, Scott and Tran, Anthony and Lin, Ying and Kornblum, John and Morrison, Shatavia S and Mercante, Jeffrey W and Fitzhenry, Robert and Weiss, Don and Raphael, Brian H and Varma, Jay K and Zucker, Howard A and Rakeman, Jennifer L and Musser, Kimberlee A

During the summer of 2015, New York, New York, USA, had one of the largest and deadliest outbreaks of Legionnaires' disease in the history of the United States. A total of 138 cases and 16 deaths were linked to a single cooling tower in the South Bronx. Analysis of environmental samples and clinical isolates showed that sporadic cases of legionellosis before, during, and after the outbreak could be traced to a slowly evolving, single-ancestor strain. Detection of an ostensibly virulent Legionella strain endemic to the Bronx community suggests potential risk for future cases of legionellosis in the area. The genetic homogeneity of the Legionella population in this area might complicate investigations and interpretations of future outbreaks of Legionnaires' disease.

Journal: Emerging infectious diseases
DOI: 10.3201/eid2311.170308
Year: 2017

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